*{
	margin:0;
	padding: 0;
}
@function size($num) {
	@return $num / (7.5) +vw
}

#video{
	width: 100%;
	.videoContain{
		width: 100%;
		video{
			width: 100%;
			height: auto;
		}
		.hrefAnswer{
			width: size(200);
			height: size(50);
			line-height: size(50);
			text-align: center;
			font-size: size(28);
			background-color: deepskyblue;
			color: #FFFFFF;
			margin: size(50) auto 0;
			animation-iteration-count: infinite;
		}
	}
}